Introduction - If you have any usage issues, please Google them yourself
The mainstream face recognition technology can be basically summed up in three categories, namely, the geometric feature based method, the template based method and the model based method.
1. the geometric feature based method is the earliest and most traditional method, and it usually needs to be combined with other algorithms in order to have a better effect.
2., template based methods can be divided into related matching methods, eigenfaces, linear discriminant analysis, singular value decomposition, neural network and dynamic link matching.
3. the model based approach is based on the implicit Markov model, the active shape model and the active appearance model.